karleyvespremi karleyvespremi

14-11-2017
Mathematics

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A ladder is resting against a wall. The ladder and the ground make an angle of 67° and the ladder is 10 ft from the wall. How long is the ladder?

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ashhan03 ashhan03

14-11-2017

The ladder is about 25.6 ft

Using x for the length of the ladder, draw it as a right triangle.

10/x = cos 67

10/x = 10/cos67

cos 67 is about 0.391

10/.391 is approximately 25.57

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